钻井过程对储层伤害的量化计算模型

针对在钻完井过程中,钻完井液侵入储层可能造成储层伤害,影响后期的开采过程,在矿场实践中,待钻井附近地层的渗透率伤害究竟由哪些因素造成、各占比例如何、以及伤害在空间的分布规律和随时间的变化规律暂无有效模型的问题。通过参照国内外相关模型和室内试验数据模拟,开展了钻井过程对储层伤害的量化计算模型的研究工作,回归建立了一套量化计算的计算模型,用于计算钻井过程对储层伤害程度,可以为优化钻井方式、优化钻井液性能、提高油气采收率、指导控压钻井施工提供技术手段。

水溶液中取代乙酸的量化计算模型

应用量子化学理论、超分子方法和ＣＮＤＯ／２计算方法，结合回归分析，对所选的７种模型进行量化计算，从中得出能模拟水溶液中羧酸的最佳量化计算模型。

构建多因子量化计算模型精准认定证券虚假陈述投资者损失——许某某等诉普天公司案评析

证券虚假陈述纠纷案件的一个司法难点在于如何精准计算投资者损失,既要有效问责虚假陈述行为人,切实维护投资者合法权益,又要贯彻损害赔偿的因果关系原则。因此,一方面,需要合理确定因果关系的范围及证明标准;另一方面,也应诉诸现代金融分析模型,量化非虚假陈述风险因素所造成的损失并予以排除。司法实践中,可在程序正当的前提下借助金融专家构建多因子量化分析模型以科学方法核定投资者损失,实现法律逻辑与金融逻辑的双重自洽。

东圳水库雨情测站数量量化模型探讨

分析东圳水库实测日雨量资料,以正态总体均值区间估计原理为基础,采用日雨量离差值、控制测量误差范围、观测结果可信度为参数,对东圳水库流域内雨情站网雨量站数量进行量化计算,探讨东圳水库流域雨情站网雨量站数量量化计算模型,为雨情站网规划提供参考。

Dynamic Integrity Measurement Model Based on vTPM

With the development of cloud computing, virtualization technology has been widely used in our life. Meanwhile, it became one of the key targets for some attackers. The integrity measurement in virtual machine has become an urgent problem. Some of the existing virtualization platform integrity measurement mechanism introduces the trusted computing technology, according to a trusted chain that the Trusted Platform Module(TPM) established for trusted root to measure the integrity of process in static. But this single chain static measurement cannot ensure the dynamic credible in platform running. To solve the problem that the virtual trusted platform can not guarantee the dynamic credibility, this paper put forward Dynamic Integrity Measurement Model(DIMM) based on virtual Trusted Platform Module(v TPM) which had been implemented with typical virtual machine monitor Xen as an example. DIMM combined with virtual machine introspection and event capture technology to ensure the security of the entire user domain. Based on the framework, this paper put forward Self-modify dynamic measurement strategy which can effectively reduce the measurement frequency and improve the measurement performance. Finally, it is proved that the validity and feasibility of the proposed model with comparison experiments.

π-Conjugated Unit-Dependent Optical Properties of Linear Conjugated Oligomers

The optical properties of three linear conjugated oligomers （F-P, F-P-F, and P-F-P-F-P）, where phenothiazine （P） and fluorene （F） groups arrange alternately, are investigated. With the enhancement of the π-conjugated system, their absorption and emission bands both gradually red shift, and their two-photon properties are also improved. Meanwhile, their fluorescence dynamic traces are analyzed with continuous rate distribution model, exhibiting that their decay rates gradually accelerate and the rate distribution width become narrower. The quantum chemical calculation offers their molecular structures and transition mechanism, showing that the enhancement of π-conjugated system should be responsible for tile improvement of two-photon properties.

Visible calculation of mining index based on stope 3D surveying and block modeling

Aimed at the CMS laser scanning theory and characteristic, a combined actual situation of stope N4-5 of Fankou Lead-Zinc Mine and complementary monitoring of the stope were carried out by carefully choos- ing two measuring points. The cavity 3D visible model was created by large-scale mining industry soft- ware Surpac after changing the measured data. The stope mine design model, bottom structural model and backfill model of the south and north sides of the stope N4-5 were established according to the stope design data. On this basis, the stope block model was established, and then block attribute was estimated. The amount the ore remains, mullock, backfill and total mined ore were calculated through the solid model restrains. Finally, the stope mining dilution rate and loss rate reached 8.2% and 1.47%, respectively. The practice indicates that the mining index visible calculation method based on cavity 3D monitoring and stope block modeling can make up the deficiency of adopting the solid model to directly carry out the Boolean operation, The stope mining indexes obtained by this method are accurate and reliable, and can be used to guide the actual nroduction management and estimate the mining aualitv.

Calculation on model of weakening hydrogen bond of thick oil of petroleum

The process of use catalyst or functional material that contains iron ion to weaken -O-H-O- hydrogen bond of the thick oil to reduce viscidity or crack, in aspects of the ion charge. covalent bond order, total energy and the average distance of Fe-O. is studied with density function theory and discrete variational method （DFT-DVM）, one of the first principle methods. With the decrease of the distance of Fe-O. the charge of Fe ion increases, the charge of hydrogen ion decreases, and hydrogen bond is weakened. There are obvious and more stable effects to use the catalyst that contains multiple metal ions or increase the catalyst amount in weakening hydrogen bond of the thick oil. This theoretic work is helpful to exploit and process the thick oil of petroleum and maybe overcome the crisis of petroleum energy is approaching to us.

Economic Analysis of CO2 Emission Abatement Applying a Dynamic CGE Model with Endogenous Technological Change： Impacts of the Time Horizon

We evaluate economic and environmental impacts of climate change mitigation in a country scale considering various time horizons in the analysis applying a single-country dynamic computable general equilibrium model with endogenous technological change. Although there is a possibility that Gross Domestic Product （GDP） becomes larger for the abatement cases than the baseline case in the earlier years, it tends to be lower than that in the later years. The longer the time horizon and/or the more severe the abatement, the larger the negative impacts will be. When subsidizing R＆D investment, increase in GDP compared to the baseline case is realized in the middle of the time horizon, and the larger increase tends to be observed for the longer-term cases. These results would be due to technological change induced by the subsidies and emission abatement. Environmental indicators are also improved. We showed that the results were influenced by the target time horizon when using an intertemporal dynamic model.

The Spatial Optimization of Eastern China's Crude Oil Pipeline Network upon Cost Minimum

Eastern China＇s crude oil pipeline network is of the largest scale and freight volume in China.Here,we analyze 37 oil pipelines and one railway（38 oil flow channels）,20 oil fields with output of over a million tons of crude oil,and 32 refineries each of which refine over a million tons of crude oil.We construct a supply and demand balance sheet of oil sources and sinks by considering the transportation cost variance of variant pipeline diameters to determine the spatial optimization of Eastern China＇s pipeline network.In 2009,the optimal cost of this network was 34.5% lower than the total actual cost,suggesting that oil flow is overall inefficient and there is huge potential to improve flow efficiency.Within Eastern China,the oil flow of the Northeast network was relatively better than others,but the flow in Northern China is inefficient because all pipelines are underload or noload,and there were similar conditions in the Huanghuai region.We assumed no difference in pipeline transport speed,compared to rail or road transportation,thus transportation distance,rather than time,is the main influential factor under the definite transporting cost of variant pipeline diameters.

高炉炉缸活性的基础研究

通过对高炉炉缸活性的基础研究,重点分析了炉缸活性的概念及其影响因素,提出了炉缸活性量化计算模型。通过采集与处理现场高炉数据以及编程技术完成了模型的在线和离线计算,成功应用于本钢新一号高炉的生产,并以该高炉曾经发生的炉缸堆积事故,从操作制度阐述了恢复炉缸活性的方法和过程。实践证明,这些研究可以为维护炉缸活性的长期良好稳定提供参考。